2003 FORD MUSTANG suspension

operation.
z Incorrect
frame/underbody
alignment. z
CORRECT as
required. REFER to
Frame Dimension
Manual.
z Feedback zLoose, worn or
damaged front wheel
spindle tie- rod. z
GO to the Tie- Rod
Articulation Torque
Component Test.
z Loose, worn or
damaged tie- rod ends. z
GO to the Steering
Linkage Component
Test.
z Loose or damaged
steering gear insulators
or bolts. z
INSTALL new or
TIGHTEN the
retaining bolts.
REFER to Section 211 - 02 .
z Loose lower steering
column shaft U- joint
bolts. z
TIGHTEN the bolts.
REFER to Section 211 - 04 .
z Loose suspension
bushings, fasteners or
ball joints. z
INSTALL new
suspension
components as
necessary. REFER to
Section 204 - 01 .
z Worn or damaged
steering column
bearing(s). z
INSTALL new
steering column
bearing(s). REFER to
Section 211 - 04 .
z Poor
Returnability/Sticky
Steering z
Binding lower steering
column shaft U- joints. z
INSTALL a new lower
steering column shaft.
REFER to Section 211 - 04 .
z Loose, worn or
damaged front wheel
spindle tie- rod. z
GO to the Tie- Rod
Articulation Torque
Component Test.
z Loose, worn or
damaged tie- rod ends. z
GO to the Steering
Linkage Component
Test.
z Suspension
components. z
REFER to Section 204 - 00 for suspension
system diagnosis and
testing.
z Binding steering
column bearing(s). z
INSTALL new
steering column
bearing(s). REFER to
Section 211 - 04 .
z Shimmy zLoose, worn or
damaged tie- rod end. z
GO to the Steering
Linkage Component
Test.
z Loose, worn or
damaged front wheel
spindle tie- rod. z
GO to the Tie- Rod
Articulation Torque
Component Test.
z Suspension
components. z
REFER to Section 204 - 00 for suspension
system diagnosis and
testing. Klj . 7 ba
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11. Turn (or have an assistant turn) the steering wheel slightly in both directions and release quickly
while watching the pressure gauge.
zThe pressure reading should move from the normal back pressure reading and snap
back as the steering wheel is released.
z If the pressure returns slowly or sticks, the rotary valve in the steering gear is sticking or
the steering column is binding. Check the steering column and linkages before servicing
the steering gear.
Tie- Rod Articulation Torque
1. NOTE: This check may be done with the steering gear on or off the vehicle.
Disconnect the tie- rod end from the front wheel spindle. For additional information, refer to
Section 211 - 02 .
2. Move the front wheel spindle tie- rod back and forth three times.
3. Hook the special tool 211- 034 (T74P-3504-Y) over the tie-rod end or the threaded portion of the
front wheel spindle tie- rod and measure the force required to move the front wheel spindle tie-
rod. Refer to Tie- Rod Articulation Torque in General Specifications in this section.
4. If the force required to move the front wheel spindle tie- rod does not meet the specifications,
install a new front wheel spindle tie- rod. For additional information, refer to Section 211 - 02 .
Steering Gear Valve 1. With the vehicle in motion, place the transmission in NEUTRAL and turn the engine OFF. zIf the vehicle does not pull with the engine OFF, install a new steering gear. For
additional information, refer to Section 211 - 02 .
2. If the vehicle pulls with the engine OFF, cross- switch the front wheels.
3. If the vehicle pulls to the opposite side, cross- switch the front and rear wheels on the same side.
4. If the vehicle pull direction does not change, check the front suspension components, wheel alignment and frame alignment. For additional information, refer to Section 204 - 00 or frame
dimensions manual. Klj . 10 ba
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DISASSEMBLY AND ASSEMBLY
Gear
Disassembly
NOTE:
The steering gear is serviceable as either a long or short rack assembly. This procedure covers
the removal and installation of the components not supplied with a short rack assembly. On short rack
assembly only the front wheel spindle tie- rods and front suspension steering ball stud dust seals are
serviced separately.
All steering gears
1. Remove the steering gear mounting bracket housing insulators. zDiscard worn or damaged steering gear mounting bracket housing insulators.
SECTION 211-
02: Power Steering 2003 Mustang Workshop Manual Special Tool(s)
Head Mounting Fixture
303-
D041 (D83L-500- B1) or
Equivalent Inner Tie Rod Socket Tool
211-
D025 (D90P-3290- A) or
Equivalent Steering Gear Holding Fixture
211-
D011 (D87P-3504- B) or
Equivalent
Material Item Specification
Multi-
Purpose Grease
XG- 4 ESR-
M1C159-
A Silicone Brake Caliper Grease
and Dielectric Compound
D7AZ-
19A331- A ESE-
M1C171-
A Klj . 1 ba
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2. Install the steering gear into the special tools.
3. Clean the exterior of the steering gear with solvent. If necessary, drain any excess power
steering fluid.
4. Inspect the steering gear housing for cracks and other damage. If necessary, install a new steering gear.
5. Verify the power steering gear input shaft bearing rotates freely. If necessary, install a new steering gear.
6. Place an alignment mark on the tie- rod ends, nuts and front wheel spindle tie- rods. Remove the
tie- rod ends and nuts.
7. CAUTION: Use care not to damage the front suspension steering ball stud dust
seals. If the front suspension steering ball stud dust seals are damaged, this will allow
contamination into the steering gear and cause leakage.
Remove the clamps and the two front suspension steering ball stud dust seals.
zDiscard any clamps that are damaged or excessively corroded.
z Discard any front suspension steering ball stud dust seals that are damaged. Klj . 2 ba
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3.
CAUTION: Place the steering gear at the center position. Use a crowfoot on the flat
of the rack gear to resist rotation and prevent damage to the steering gear during
removal and installation of the front wheel spindle tie- rods.
Place the steering gear at the center position. Install a crowfoot on the flat of the steering gear.
Using the special tool install the front wheel spindle tie- rods.
4. Thoroughly clean the steering gear of any foreign material.
5. CAUTION: Use care not to damage the front suspension steering ball stud dust
seals. If the front suspension steering ball stud dust seals are damaged, this will allow
contamination into the steering gear and cause leakage.
Install the front suspension steering ball stud dust seals and clamps.
zPosition the front suspension steering ball stud seals and steering gear rack tubes as
shown.
z Install new front suspension steering ball stud dust seals and clamps as necessary.
z To prevent the front suspension steering ball stud dust seals from twisting during toe
adjustment, apply grease to the groove in the front wheel spindle tie- rods and uniformly
to the inner- diameter of the front suspension steering ball stud dust seals. Klj . 4 ba
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·
Damaged or incorrectly adjusted ·
Inspect and repair as required. Verify transmission shift
cable adjustment; refer to Section 307 - 05 . Adjust
transmission shift cable as necessary. After repairing
transmission shift cable, verify that the digital TR sensor is
correctly adjusted. Adjust the digital TR sensor as
necessary. Verify Correct Shift Scheduling
and Engagements
·
See Reference/Action ·
Go to the appropriate diagnostic routines. Torque Converter Clutch Always
Applied
·
See Reference/Action ·
Go to Hydraulic/Mechanical Routine 241/341. Torque Converter Clutch
·
Damaged ·
Inspect torque converter. Install a new converter as outlined.
Other Concerns: Noise/Vibration — Forward Or Reverse Possible Component Reference/Action
254 —
ELECTRICAL ROUTINE ·
No Electrical Concerns 354 —
HYDRAULIC/MECHANICAL ROUTINE For Noises/Vibrations That Change With Engine
Speed
·
Converter components/balance weight ·
Locate source of disturbance. Repair as
required. ·
Fluid level (low) pump cavitation ·
Pump assembly ·
Engine drive accessories ·
Cooler lines grounding out ·
Flexplate For Noises/Vibrations That Change With Vehicle
Speed
·
Engine mounts loose or damaged ·
Locate source of disturbance and repair as
required. ·
Driveline concerns:
„ U-joints
„ Rear axle
„ Suspension
„ Modifications
1st Gear: „Low one- way clutch
„ Gearset
„ Friction elements ·
Refer to the following shift routine(s) for
further diagnosis:
„ Shift 1- 2, Routine 320
„ Shift 2- 3, Routine 321
„ Shift 3- 4, Routine 322
„ Shift 4- 3, Routine 323
„ Shift 3- 2, Routine 324
„ Shift 2- 1, Routine 325
„ Torque Converter Cycling 242/342 ·
2nd Gear:
„ Intermediate one- way clutch
„ Intermediate clutch piston bleed hole out of Klj . 28 ba
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z
Check that the vehicle is on level ground.
z If the vehicle is equipped with air suspension, make sure that the switch is on.
2. NOTE: The vertical wall or screen must be a minimum of 2.4 meters (8 feet) wide.
Park the vehicle on a level surface approximately 7.6 meters (25 feet) from the vertical wall or
screen directly in front of it.
3. NOTE: The center of the lamp is marked by a 3 mm (0.12 in) circle on the headlamp lens.
Mark a horizontal reference line on the vertical wall or screen. 1. Measure the center of the headlamp height to ground and record.
2. Make a 2.4 meter (8 foot) horizontal mark (masking tape) on the vertical wall or screen at the same distance from the ground as previously recorded.
4. NOTE: This procedure should be done in a dark environment to effectively see the headlamp
beam pattern.
Turn on the low beam headlamps to illuminate the wall or screen and open the hood.
5. NOTE: For SAE type headlamps, the appearance of the beam pattern may vary between
vehicles.
On the wall or screen, locate the high intensity area of the beam pattern. Place the top edge of
the high intensity zone even with the horizontal reference line.
VOR type headlamps 6. NOTE: The appearance of the VOR beam pattern may vary between vehicles.
Identify at the top edge of this high intensity area a distinct horizontal cutoff in the beam pattern.
If the top edge of this cutoff is not even with the horizontal reference line, the headlamp beam will need to be adjusted. Klj . 2 ba
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DESCRIPTION AND OPERATION
Frame Assembly
Underbody misalignment can affect front and rear wheel alignment, the operation of the suspension
parts and drivetrain operation. Window glass cracks, door and window opening concerns, and air or
water leaks at the doors are often caused by improperly tightened bolts and body misalignment.
Every structural member and outer panel is designed to offer the maximum protection in the event of a
collision.
SECTION 502-
00: Frame and Body Mounting 2003 Mustang Workshop Manual Klj . 1 ba
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